A student in the laboratory connects a 17 Ω resistor, a 22 Ω resistor, and a 38 Ω resistor in series and then?
A student in the laboratory connects a 17 Ω resistor, a 22 Ω resistor, and a 38 Ω resistor in series and then connects the arrangement to a 35-V dc source.
(a) How much current is in the circuit?
A:
(b) How much power is expended in the circuit?
W:
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Verified answer
Resistors in series add
Rt = R1 +R2 + R3.........Rn
Current = V / Rt
power = VI
or V^2/Rt
or I^2 Rt